This pattern can be found for free online at https://www.jessieathome.com/matrix-hat-free-knit-pattern/

The Matrix Hat got its name for the falling knit stitches which remind me of the falling code in the Matrix movies. Quick, easy, and unisex, this hat is great for gifts! The ribbed brim is made to be folded up, to add extra warmth around the ears. This hat is knit from the bottom up. It can be made longer by repeating the ribbing round more times, but keep in mind that a longer hat will take more yarn.

Size
Child, Small, Medium, Large
Fits 18 (20, 22, 24) inch head

Yarn
Berroco Vintage Chunky: (52% Acrylic, 40% Wool, 8% Nylon), Size 5 (8 wpi, chunky weight), 136 yds / 100 g (yds/g = 1.36)
Black Cherry 6181: 1 skein, (95 (110, 120, 130) yds / 70 (80, 90, 95) g)

Needles
6.5 mm (US 10.5)

Gauge
15 sts x 20 rows = 4” 10 cm in Stockinette

Other Supplies
yarn needle

Stitches and Abbreviations
co - cast on
k - knit
p - purl
p2tog - purl 2 together